/*
* CINELERRA
* Copyright (C) 2008 Adam Williams <broadcast at earthling dot net>
- *
+ *
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
- *
+ *
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
- *
+ *
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
- *
+ *
*/
-#ifndef CLIP_H
-#define CLIP_H
+#ifndef __CLIP_H__
+#define __CLIP_H__
// Math macros
#undef SQR
#undef DISTANCE
#define DISTANCE(x1, y1, x2, y2) \
(sqrt(((x2) - (x1)) * ((x2) - (x1)) + ((y2) - (y1)) * ((y2) - (y1))))
+#define TO_RAD(x) ((x) * 2 * M_PI / 360)
+#define TO_DEG(x) ((x) * 360 / 2 / M_PI)
+static inline int bclip(int &iv, int imn, int imx) {
+ return iv < imn ? imn : iv > imx ? imx : iv;
+}
+static inline float bclip(float &fv, float fmn, float fmx) {
+ return fv < fmn ? fmn : fv > fmx ? fmx : fv;
+}
+static inline double bclip(double &dv, double dmn, double dmx) {
+ return dv < dmn ? dmn : dv > dmx ? dmx : dv;
+}
+static inline void bclamp(int &iv, int imn, int imx) {
+ if( iv < imn ) iv = imn; else if( iv > imx ) iv = imx;
+}
+static inline void bclamp(float &fv, float fmn, float fmx) {
+ if( fv < fmn ) fv = fmn; else if( fv > fmx ) fv = fmx;
+}
+static inline void bclamp(double &dv, double dmn, double dmx) {
+ if( dv < dmn ) dv = dmn; else if( dv > dmx ) dv = dmx;
+}
+static inline void bc_rgb2yuv(int r, int g, int b, int &y, int &u, int &v, int max=255)
+{ //bt601, jpeg, unclipped
+ double mx = max, rr = r/mx, gg = g/mx, bb = b/mx;
+ y = (int)(( 0.29900*rr + 0.58700*gg + 0.11400*bb) * mx + 0.5);
+ u = (int)((-0.16874*rr - 0.33126*gg + 0.50000*bb + 0.5) * mx + 0.5);
+ v = (int)(( 0.50000*rr - 0.41869*gg - 0.08131*bb + 0.5) * mx + 0.5);
+}
+static inline void bc_yuv2rgb(int y, int u, int v, int &r, int &g, int &b, int max=255)
+{
+ int ofs = (max + 1) / 2;
+ double mx = max, yy = y/mx, uu = (u-ofs)/mx, vv = (v-ofs)/mx;
+ r = (int)((yy + 1.40200*vv) * mx + 0.5);
+ g = (int)((yy - 0.34414*uu - 0.71414*vv) * mx + 0.5);
+ b = (int)((yy + 1.77200*uu) * mx + 0.5);
+}
#endif